if you really want some kickass gun ,
check out thisone :
http://www.maxs-sport.de/produkte/01074.jpg
Comes with :
Tunigbarrel, Frontbottleconnector with Antiliquidsystem, Bottomline, Vertikalfeed, Volumizer, Doublefingertrigger , Antidoublefeed,Rearcocking System, Dropforward with Regulator and Manometer
Effective range is about 50 metres at 300 bpi
Shot frequency around 60/minute
Great gun , i use it aswell and killed literally hundreds of persons with it :)